baber/WOPTO huggingface dataset:
Patent GB-1501226-A (GB)
Title: Arithmetic units
IPC: G06F17/16
Filed: 1975-10-20
Abstract: 1501226 Arithmetic units; multiplication INTERNATIONAL BUSINESS MACHINES CORP 20 Oct 1975 [3 Dec 1974] 42950/75 Heading G4A A pair of adders ADD1 and ADD2 are connected in a loop to form the sum of a series of products AiBi or a product as a sum of partial products. A pair of operands Ai, Bi are registered in TAB, and the multiplicand multiple 3Bi is derived by a unit 3B. In the embodiment described, a 16-bit operand Ai is divided into least and most significant parts Ai(L) and Ai(M) each of which is sub-divided into groups of 2 (of highest significance), 3 and 3 bits which are decoded in units CAC to select multiples of Œ0, 1, 2, 3 or 4 Bi for application to inputs of the adders. The 2'O complement code is used for negative values and the left-most bit is a sign bit. Operation (1) CAC1 and CAC2 form the components which, combined in ADD1, provide the product Ai<SP>6</SP>(L).Bi (the index "6" denotes the number of bits of Ai used, i.e. three in each of CAC1 and CAC2) while CAC3 forms and stores in a buffer Q the product Ai<SP>2</SP>(L).Bi. (2) ADD2 performs Ai<SP>2</SP>(L).Bi+Ai<SP>6</SP>(L).Bi = Pi(L) while CAC1 and CAC2 form the components which, combined in ADD1, provide the product Ai<SP>5</SP>(M).Bi and CAC3 forms and stores in buffer Q the product Ai<SP>2</SP>(M).Bi. (3) ADD2 perfroms Ai<SP>2</SP>(M).Bi+Ai<SP>6</SP>(M).Bi=Pi(M) while CAC1 and CAC2 form the components of A<SP>6</SP> i+1 (L).B i + 1  which are combined with Pi(L) from register K in ADD1 and CAC3 forms and stores in buffer Q the product A<SP>2</SP> i+1 (L).B i+1 . Steps 1-3 repeat for successive operand pairs. The final result may be truncated and rounded off using ADD 1.
Patent GB-1342860-A (GB)
Title: Process for the production of a sheet-metal cage for cylindeical rolling bodies
IPC: F16C33/46
Filed: 1972-09-18
Abstract: 1342860 Bearing cages W SCHAEFFLER and G SCHAEFFLER [trading as INDUSTRIEWERK SCHAEFFLER OHG] 18 Sept 1972 [22 Sept 1971] 43169/72 Heading B3A [Also in Division F2] A sheet-metal roller bearing cage comprising two end rings in the form of radially oriented flanges interconnected by webs which are so profiled that they have a plurality of sections extending parallel to but at different distances from the cage axis is made by the following steps: (a) a uniform plane sheet-metal strip is so shaped without cutting that it has a greater wallthickness in its two lateral zones than in its middle zone (Fig. 4); and then in any sequence (b) the strip is shaped in accordance with the subsequent form of the webs and end rings (Fig. 5) and (c) the webs are formed by punching out the middle zone (Fig. 6) such that the junctions between the webs and the flanges are located in the aforesaid lateral zones; and finally (d) the strip is bent to form cylinder, and the abutting ends of the end rings are welded together. Step (a) may be performed by rolling or upsetting. In an alternative embodiment (Fig. 8, not shown), in the transition zone from the end rings to the webs, there is a gradual change in wall thickness.
Patent GB-1354648-A (GB)
Title: Control valve in a pressure fluid operated tool
IPC: B25D9/16
Filed: 1972-09-18
Abstract: 1354648 Percussive tools ATLAS COPCO AB 18 Sept 1972 [17 Sept 1971] 43209/72 Heading B4C [Also in Division F2] A valve in a pressure fluid actuated tool, e.g. a nut runner, screw driver, grinding machine, blowing nozzle or a chipping hammer as shown, comprises a control valve 15, Fig. 1, formed by a hollow elastomeric element 27 open at one end towards a pressure fluid inlet 25 and deformable by a radial rod 36 or 37 to define an axial flow channel from the inlet to the appropriate outlet channel 28 or 32. Thus the valve can be used as shown to control flow of pressure fluid to the hammer piston 16 of the impact motor via channel 28, chamber 29 and disc valve 17, and also to independently control flow of pressure fluid through channel 32 and exhaust passage 20 to blow away the chippings. The element 27 has a pair of stiffening ribs 42, 43 which may be wire reinforced Fig. 7 (not shown). The element may be of frusto-conical form, Fig.2 (not shown). Projection 35 prevents rotation of the element. After removal of threaded bush 44, the element can be removed by blowing it out with compressed air delivered through passages 20, 47.
Patent GB-1088098-A (GB)
Title: Improvements in or relating to apparatus for compressing or expanding a fluid medium
IPC: F04B49/12
Filed: 1964-10-23
Abstract: 1,088,098. Reciprocating compressors and hot gas engines. PHILIP'S GLOEILAMPENFABRIEKEN, N.V. Oct.23, 1964 [Oct.25, 1963], No.43334/64. Headings F1N and FlS. [Also in Division F4] A reciprocating piston compressor, expansion engine or hot-gas engine comprises a cylinder having an upper piston 134 or 136 reciprocable therein to vary the volume of a working space Wa or Wb and a lower piston spaced from the upper piston by a column of liquid V contained in the cylinder and variable in volume to regulate the compression ratio. The volume of the column of liquid V may be controlled manually, or automatically, as described in Specification 1, 082, 581 in relation to a compressor. In the two-stage compressor system shown, the compressors A and B are connected in series and the columns of liquid Va, Vb are interconnected by a pipe 141, the columns receiving liquid through an inlet 138 and discharging liquid through an outlet 139 under the control of a device 140 responsive to the system discharge pressure and constructed and adapted to operate as described in the aforementioned Specification. Springs 133, 135 ensure that the pressure of the connected liquid columns Va, Vb is greater than the mean first stage pressure in working space Wa and less than the mean second stage pressure in working space Wb so that the oppositely facing diaphragms 130, 131 are always maintained in a stretched condition. In a modification, Fig. 8 (not shown) both faces of the driven piston contact a liquid column to thereby reciprocate two working pistons. Instead of providing springs to provide a constant pressure differential across the rolling diaphragms, an arrangement as described in Specification 1, 015,226 may be employed. Reference has been directed by the Comptroller to Specification 1, 015, 266.
Patent GB-1453740-A (GB)
Title: Process for the production of fine-cell polyolefin foams
IPC: C08J9/06
Filed: 1974-10-08
Abstract: 1453740 Process for production of polyolefin foams BAYER AG 8 Oct 1974 [13 Oct 1973] 43503/74 Heading C3C A process for the production of a foam comprises mixing at least one polyolefin, a peroxide, a principal blowing agent having a decomposition range in excess of 190 C., and 0À1-1À5% by weight, based on the principal blowing agent, of an auxiliary blowing agent having a decomposition range of 130-190 C., shaping the mixture such that neither cross-linking nor appreciable foaming takes place to form a shaped mass, and subsequently cross-linking and foaming said shaped mass by heating to a temperature in excess of 190 C. The preferred olefins are polyethylene and polypropylene, the principal blowing agent may be azodicarbonamide or dinitrosopentamethylene tetramine, the peroxides are preferably organic (especially dicumyl peroxide), and the auxiliary blowing agent is preferably a disulphohydrazide of formula wherein X represents an alkane radical of up to 6 carbon atoms, a cycloalkane radical of 4-7 carbon atoms, an arylene radical of 6-12 carbon atoms or an aromatic radical of formula wherein Y is O, SO 2 , S or a divalent linkage or a sulphohydrazide of formula wherein X<SP>1</SP> is alkyl of up to 6 carbon atoms, cycloalkyl of 4-7 carbon atoms or aryl of 6-12 carbon atoms, and R represents an acyl radical of 3-6 carbon atoms or the radical wherein R<SP>1</SP> is alkylene, and R<SP>11</SP> is alkyl, each of 1-5 carbon atoms. The foams may have a density of 25-200 kg./m.<SP>3</SP> and contain at least 30 cells/cm.
Patent GB-1472262-A (GB)
Title: Imaging apparatus comprising a fuser
IPC: G03G15/20
Filed: 1974-10-10
Abstract: 1472262 Electrostatic copying XEROX CORP 10 Oct 1974 [18 Oct 1973 (2)] 44009/74 Heading G2H An electrostatic copying machine comprises a fusing station having an axially adjustable heated fuser roll 41 and a pressure roll 42 forming a nip. Stripper fingers 46 remove copy sheets from the fuser roll. Rolls 41 and 42 have cores 54, 50 respectively which may be of copper and steel respectively and coverings 55 and 51 respectively, which may be of P.T.F.E. Core 54 is hollow and houses a heating lamp 56 and roll 42 may also be axially adjustable. The roll mountings are described in detail and the whole machine is also described.
Patent GB-1113144-A (GB)
Title: Sump filter with indicator
IPC: B01D29/11
Filed: 1966-10-03
Abstract: 1,113,144. Liquid filter. DOLLINGER CORPORATION. 3 Oct., 1966 [26 Jan., 1966], No. 44056/66. Heading BID. A filter 11, adapted to be mounted with its inlet 18 dipping into a sump 79 and its outlet 25 connected to a suction pump delivering to a closed lubricating or hydraulic circuit (not shown), comprises an axially pleated filter element 41 of annular form whose lower end is closed by a spring-loaded piston 52, which rises as clogging of element 41 increases the differential pressure to rotate an eccentrically mounted cam 65, whereby an external pointer 67 indicates that the element needs replacing. As shown, pointer 67 remains displaced until manually restored, even when the pump is switched off, but could be spring loaded to follow piston rod 58 both ways. When bolts 28 are loosened, the end cap 30 of housing 12 is twisted and removed together with element 41 and the indicating assembly. Element 41 is clamped to cap 30 by rods 47. The annular wall 34 of cap 30 has two opposed ports 35, (36), so that one is aligned with outlet 25 whichever way cap 30 is fitted (Figs. 2, 3 not shown). Housing 12 is axially adjustable in plate 75, mounted on the sump 79, and its lower inlet 18 has a non-return valve 22.
Patent GB-990551-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C19/36
Filed: 1961-12-08
Abstract: 990,551. Bearings; securing race rings on shafts. SKEFKO BALL BEARING CO. Ltd., and A. M. LAMM. Jan. 28, 1963 [Dec. 8, 1961], No. 44098/61. Headings F2A and F2U. In a roller bearing having an inclined track, a radially projecting flange is provided at the end of the inner race ring of smallest diameter to restrict the higher diametral expansion of that end of the ring resulting from an interference fit upon a shaft. A flange d is integral with an inner race ring b which has either a separate guiding ring C (Fig. 1), which bears against the adjacent end of the inner race ring b to provide a guide face n for rollers f, or a separate guide ring J (Fig. 2), limited in axial adjustment towards ring b solely by engagement of face m with the end face k of the rollers. The part c may be of a different material from b either being, or having a surface of, a material of lower coefficient of sliding friction. The diameter of the flange d is selected to produce the desired roller inclination after assembly.
Patent GB-1517978-A (GB)
Title: Cathode-ray tubes
IPC: H01J29/28
Filed: 1975-10-27
Abstract: 1517978 Luminescent screens PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 27 Oct 1975 [20 Jan 1975] 44107/75 Heading H1D In a method of selectively metallizing only the phosphor regions of a pattern of phosphor regions and uncovered regions on the faceplate of a cathode ray tube, e.g. a colour television tube thereby avoiding the need for a black matrix surround for the phosphor regions, the pattern is coated with a photosensitive layer which is exposed to actinic radiation through the faceplate, whereafter the photosensitive layer is developed to remove it from the phosphor regions, and the pattern is treated, without prior sensitization with a solution comprising tin ions, with a solution containing ions of Pd, Pt, Au, Ag, or Cu before being metallized with Ni, Ag, Co, Sn, Cu, or Au in an electroless plating bath, the remaining parts of the photosensitive layer finally being removed by heating. Suitable treating and plating solutions are specified.
Patent GB-1526257-A (GB)
Title: Lighting device
IPC: B60Q3/04
Filed: 1975-10-27
Abstract: 1526257 Lamps INTERNATIONAL VIBRATION ENG 27 Oct 1975 [28 Oct 1974] 44201/75 Heading F4R A device for illuminating instrument panels, dials, &c. comprises a member (preferably cylindrical) made of light-conducting material and having an at least partially convex external surface, one or more holes in the member to receive the source(s) of illumination, and masking means on the external surface to permit light to issue from desired areas of the surface.
Patent GB-1010889-A (GB)
Title: Improvements in or relating to linings for tunnels or like underground structures
IPC: E21D11/15
Filed: 1961-12-12
Abstract: 1,010,889. Tunnels. RHEINSTAHL EISENWERKE GELSENKIRCHEN A.G. Dec. 12, 1961 [Dec. 13, 1960], No. 44503/61. Heading E1F. A tunnel lining is constructed by assembling structural elements 1 under the protection of a shield 12, connecting the elements by clamps 10, 11, blowing or pressing sand or other filling into the space 16 between the tunnel wall and the lining, and removing the clamps. The shield has a wedge piece 19, pipes 14 for blowing sand into the space, a ring 18 preventing leakage of sand from the space, and jacks 13. The abutting edges 2, 3 of the elements are curved, the edge 2 having packing 4. The section of the lining, as assembled, has a height slightly greater than its width so that after settling the section is circular. Reference has been directed by the Comptroller to Specification 840,262.
Patent GB-1125293-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06F11/10
Filed: 1965-10-20
Abstract: 1,125,293. Calculating apparatus. A. H. F. RICHARDSON. 2 Sept., 1966 [20 Oct., 1965], No. 44512/65. Heading G4B. A device for calculating the check digit associated with an account number comprises a sheet having thereon a circular spaced sequence of numerical markings divided into a plurality of segments, an arcuate slot in each segment with the markings therealong, a second sheet rotatable about the centre of markings and having a plurality of spaced holes or indentations arranged to show in the slots and having marked thereon a succession of sequences of check numerals, one of which numerals at a time shows in an aperture or recess in the first sheet. As illustrated, the second sheet is a disc 2 having 99 apertures 2a and the sheet is a plastics member 1, having nine segments, each including an arcuate slot 1b and having an aperture 1a through which repeated symbols 0-9 and A (A = 10) can be viewed. The check digit is calculated by multiplying the digit in each denominational order of an account number by a different constant, adding the results together, dividing by a modulus and taking the difference between the remainder and the modulus. In the illustrated embodiment the constant for the first denominational order is 3, the modulus 11 and the symbols 0-9 are positioned according to the following:- position = 1- remainder of 3n/11 where n = 0, 1,...9; e.g. for digit 6 (i.e. n = 6), position = 11-7 = 4. The positions for the digits in the other denominational orders are calculated similarly. Thus to calculate a check digit it is sufficient to locate 0 in aperture 1a and to dial the digit of each denomination in the corresponding slot and thus to move the disc clockwise. Alternatively the calculation may commence with a specified number positioned in aperture 1a.
Patent GB-1493086-A (GB)
Title: Rotatable extrusion die head for extruding an inflated tube of synthetic resin
IPC: B29C48/10
Filed: 1975-10-29
Abstract: 1493086 Extruding tubular film PROOST EN BRANDT NV 29 Oct 1975 [1 Nov 1974] 44617/75 Heading B5A [Also in Division G3] A tubular synthetic resin film is produced by inflating, by internal air pressure, a tube 15, Fig. 1, extruding from the tubular outlet 10 of a die head 3 which rotates about the axis of the outlet 10, and the inflating air is supplied to or vented from the tube interior, at a die head inlet 11, from a stationary shoe comprising an arcuate segment 34, Fig. 2, which is in sliding contact with a ring 21 which rotates with the head, so that the segment 34 sequentially unseats an adjacent number, e.g. 3 of spring seated ball valves 29 which are circumferentially spaced around the periphery of the ring 21, and provide communication of the air to or from an annular space 22 of the ring 21, to which inlet 11 is connected by a conduit 23. The sliding contact is effected by a spring 42 acting at each end of the shoe 24, with surfaces 35 of the shoe 34 in sliding contact with surfaces 25 of a recess provided around the ring 2. The shoe 34 has, intermediate its ends, a pair of air communication grooves 36, 37 connecting to an air supply conduit 40, and a portion 41 intermediate the grooves 36, 37, acting to unseat the valves 39 against the action of a spring 30, with each valve 39 and spring 30 being housed in an assembly 26, 31 having a seating rim 28 for the ball valve 29 and being a press fit into an opening 26 through the ring 21 providing communication to the space 22. The inflated tube 15 is flattened by a pair of rotating rollers 16, to a width at 15<SP>1</SP> which is maintained constant by a pair of feelers 17, 18, which supply pulses to a regulator 19 which controls a device 20, acting to provide communication of the shoe 34 with an air inlet 46 or exhaust 47, or close communication to both the inlet 46 and exhaust 47. In the Fig. 4 embodiment (not shown), the extruding tube is cooled internally by circulating the inflating air through the interior of the extruding tube, the mandrel of the die head having a pair of concentric tubes projecting into the inflating tube and of which the outer tube is perforated and connected to the ring (34) for the admission of air, and the inner tube is imperforate for the exhaust of warm air, via a further ring similar to the ring (34). The pressure of air within the tube may be controlled similarly to the Fig. 1 embodiment.
Patent GB-1206285-A (GB)
Title: Improvements in or relating to belt conveyors
Inventor: NACHEV SLAVI STEFANOV
IPC: B65G23/00
Filed: 1967-10-02
Abstract: 1,206,285. Endless belt conveyers. VISH MASHINO - ELEKTROTECHNITCHESKI INSTITUT. 2 Oct., 1967, No. 44822/67. Heading B8A. The belt 1 of an endless conveyer is driven by two drums 2, 3 and its two runs are drivingly connected by rollers 4 which are movable vertically above support rollers 6. Rollers 5 also support the belt which is initially tensioned by a device 7. The distances ¢S max. represent the maximum belt tensions occurring in the conveyer of the invention (full line) and in a conventional type of conveyer (dashed line). When the conveyer has a troughed belt, Fig. 2a, the roller 4 of a troughing roller assembly extends below a support 8 to engage the lower belt run.
Patent GB-1098377-A (GB)
Title: Improved apparatus for detecting an electrical condition in a region of high electrical potential and transmitting an indication thereof
IPC: G01R15/24
Filed: 1965-10-22
Abstract: 1,098,377. Indicating apparatus; detecting electrical conditions photo-electrically. ALLISCHALMERS MANUFACTURING CO. Oct.22, 1965 [Nov. 9, 1964], No.44825/64. Headings G1A, G1J and G1Q. In a system for measuring the current in a high voltage overhead transmission line 10 and indicating its value at ground level without electrically linking the line to the ground, measuring apparatus coupled to the line moves a reflector 22 to deflect a light beam which passes to the ground through a device 34 consisting of a plurality of light transmitting channels. Movement of the reflector is detected as a change in the pattern of illumination of the device 34. The measuring apparatus may, as shown, be a galvanometer transformer-coupled to the line or a suitable Piezo-electric transducer. The incident beam 26 is derived from a source 24 by way of an optic fibre 28, and the reflected beam in the case of the plane reflector 22 shown enters a particular one of the channels 34a to g of the device 34. Each of these channels is an optic fibre so that a detector 32, by sensing which fibre is illuminated, can indicate the position of reflector 22. In Fig.4 (not shown) the plane reflector 22 of Fig. 1 is replaced by a convex reflector (23) so that a divergent beam (31) enters the device 34. In this modification, a plurality of the fibres of device 34 will be illuminated and a proportion of the reflected light, varying with the reflector position, will not enter the device 34. This produces a variation of the total light intensity emergent from the device 34. This intensity is compared in the detector with the intensity of a reference beam. The reference beam may be derived from the same source 24 as the deflected beam, by passing light through a second fibre (28a) adjacent fibre 28 on to a fixed reflector (26a) and by way of a fibre (40) adjacent device 34 to the detector.
Patent GB-1413917-A (GB)
Title: Octylamino-cyclohexano derivative, a process for its prepa ration and its use in microbicidal preparations
Filed: 1973-09-25
Abstract: 1413917 1,3,3 - Trimethyl - -1 - octylaminomethyl - 5 - octylamino - cyclohexane TH GOLDSCHMIDT AG 25 Sept 1973 [27 Sept 1972] 44926/73 Heading C2C The invention comprises 1,3,3, -trimethyl- 1 - octylaminomethyl - 5 - octylaminocyclohexane having the formula H may be prepared by reacting 1,3,3-trimethyl - 1 - aminomethyl - 5 - amino - cyclohexane with an equimolar quantity of an octylhalide and, when the exothermic reaction is over, heating the reaction mixture at 100 to 150 C. for at least a further hour. The compound of the invention may be used as an active ingredient in microbicidal preparations.
Patent GB-952529-A (GB)
Title: Improvements in or relating to electrical indicating means
Inventor: HAYMAN BERNARD MAX
IPC: G01F23/70
Filed: 1961-12-15
Abstract: 952,529. Fluid actuation of switches. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 25, 1962 [Dec. 15, 1961], No. 44966/61. Heading H2B. [Also in Division G1] A float-controlled contact arrangement comprises a metal cylinder 13 open at its lower end and depending from a closure cap 12 for the neck of a liquid reservoir, and a hollow float 18 open at its lower end with a rod 19 passing through a hole 21 in an insulating plug 14. As the level of the liquid falls, the float 18 lowers and part 22 of the rod 19 engages a metal strip 17 in the plug 14, to complete a circuit to a lamp 26, the float 18 and earthed cylinder 13 being connected by a wire 20. A gaseous discharge lamp may be used in the circuit, Figs. 2 and 5 (not shown). In other embodiments, the contact on the float 45, Fig. 3 (not shown), comprises e disc 47 which makes contact with member 42 or with limbs 43, Fig. 6 (not shown). and terminal 39. In further embodiments, one contact comprises a contact pin 59, Fig. 4 (not shown), and 61, Fig. 5 (not shown), which engages a contact plate 52 on the float 51, Fig. 4, and the float itself 64, Fig. 5. Specification 918,870 is referred to.
Patent GB-1525629-A (GB)
Title: Knitting machine needles
IPC: D04B35/04
Filed: 1975-10-31
Abstract: 1525629 Knitting machines EDOUARD DUBIED & CIE SA 31 Oct 1975 [3 Dec 1974] 45354/75 Heading D1C The shaft of a needle for a knitting machine is in two separate parts 1, 4, of which part 1 is equipped with the hook and latch and part 4 with a butt 5, and a buffer material 6 is interposed between the parts at least at one point to reduce the transmission of shocks from the butt to the hook. The material 6 may be synthetic e.g. plastics or synthetic rubber or an adhesive, natural e.g. leather or a metal e.g. copper, aluminium or hard solder.